So I have a small sim rig that my 12 y/o son uses. He has my old Oculus Rift DK1, and is currently running 0.6K.

Does the current 0.6P still allow DK1? He's on the 0.8 Runtime, as I believe the 1.3 Runtime does not work with DK1.

If not - what's the most current version he can run that will work with DK1? ... and then a follow-up... is THAT version compatible over a network (for local multiplayer) with current 0.6P? Sometimes he and I like to race each other - I'm on 0.6P with a CV1. Hoping to work it out to where he and I can still race each other virtually.

Thanks!

Jim

Between 0.6K and 0.6P were some updates that I would guess make them not compatible. (like new autocross objects)
I think different letters in the version-name mean the versions are not compatible.

No idea on the DK1 question, maybe just try it out. Worst case is that you might to keep two installs.
(one for normal online play, one for local network)